Patents by Inventor John Alderson
John Alderson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11575677Abstract: Methods and apparatuses are described for enterprise access control governance in a computerized information technology (IT) architecture. A server determines access control entitlements for each of a plurality of users of the IT architecture, and converts the access control entitlements for each user into a multidimensional vector. The server generates a vector space comprising a plurality of nodes, each node in the vector space corresponding to a multidimensional vector associated with the access control entitlements. The server determines clusters of nodes in the vector space by using a similarity measure based upon dimensions of the vector. The server identifies a job role associated with each of the clusters of nodes in the vector space based upon access control entitlements that are common to the nodes. The server locates outlier nodes in the vector space positioned at least a predetermined distance away from at least one of the clusters.Type: GrantFiled: February 24, 2020Date of Patent: February 7, 2023Assignee: FMR LLCInventors: Apurva Jani, John Alderson, Rajath Madihally Narayana
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Publication number: 20210266323Abstract: Methods and apparatuses are described for enterprise access control governance in a computerized information technology (IT) architecture. A server determines access control entitlements for each of a plurality of users of the IT architecture, and converts the access control entitlements for each user into a multidimensional vector. The server generates a vector space comprising a plurality of nodes, each node in the vector space corresponding to a multidimensional vector associated with the access control entitlements. The server determines clusters of nodes in the vector space by using a similarity measure based upon dimensions of the vector. The server identifies a job role associated with each of the clusters of nodes in the vector space based upon access control entitlements that are common to the nodes. The server locates outlier nodes in the vector space positioned at least a predetermined distance away from at least one of the clusters.Type: ApplicationFiled: February 24, 2020Publication date: August 26, 2021Inventors: Apurva JANI, John ALDERSON, Rajath Madihally NARAYANA
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Patent number: 9377375Abstract: In operating a vibration testing system, a table is provided with a plurality of distinct regions, and each of the plurality of distinct regions is provided with at least one vibrator of the plurality of vibrators and at least one accelerometer of the plurality of accelerometers. Target vibration strengths are set for each region, and the vibrators are operated. Local vibration strength is measured at each distinct region with the corresponding accelerometer(s) of the plurality of accelerometers. A signal corresponding to each of the measured local vibration strengths is provided to a controller. An individual vibrator control signal is calculated for each distinct region based on the corresponding measured local vibration strength and the corresponding target vibration strength. The individual control signals are provided from the controller to control the vibrator(s) of each distinct region to achieve the target vibration strength at each of the distinct table regions.Type: GrantFiled: May 16, 2012Date of Patent: June 28, 2016Assignee: Venturedyne, Ltd.Inventors: John Alderson, Joseph D. Wetzel
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Publication number: 20130305828Abstract: In operating a vibration testing system, a table is provided with a plurality of distinct regions, and each of the plurality of distinct regions is provided with at least one vibrator of the plurality of vibrators and at least one accelerometer of the plurality of accelerometers. Target vibration strengths are set for each region, and the vibrators are operated. Local vibration strength is measured at each distinct region with the corresponding accelerometer(s) of the plurality of accelerometers. A signal corresponding to each of the measured local vibration strengths is provided to a controller. An individual vibrator control signal is calculated for each distinct region based on the corresponding measured local vibration strength and the corresponding target vibration strength. The individual control signals are provided from the controller to control the vibrator(s) of each distinct region to achieve the target vibration strength at each of the distinct table regions.Type: ApplicationFiled: May 16, 2012Publication date: November 21, 2013Applicant: VENTUREDYNE, LTD.Inventors: John Alderson, Joseph D. Wetzel
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Patent number: 7752914Abstract: In a first embodiment of the present invention a method of monitoring individual vibrators in a pneumatic vibration testing system is disclosed. The method includes providing a pneumatic vibration testing system including at least one vibrator, where each vibrator is connected to a pressurized air system through an output of a valve. Pressurized air is then supplied at a known pressure to an input of the valve. When that air is supplied to the valve the valve releases air in measured bursts to the vibrator and the pressure between the valve and the vibrator is monitored. The pressure between the valve and the vibrator is compared to the known pressure, which indicates if the vibrator is failing or has failed. In preferred embodiments, the testing system includes a plurality of vibrators and an equal plurality of valves, each vibrator is connected to the pressurized air system through a single associated valve.Type: GrantFiled: November 15, 2007Date of Patent: July 13, 2010Assignee: Venturedyne, Ltd.Inventors: John Alderson, Steven P. Beavers, Randall J. Beckman, Joseph D. Wetzel
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Publication number: 20090126497Abstract: In a first embodiment of the present invention a method of monitoring individual vibrators in a pneumatic vibration testing system is disclosed. The method includes providing a pneumatic vibration testing system including at least one vibrator, where each vibrator is connected to a pressurized air system through an output of a valve. Pressurized air is then supplied at a known pressure to an input of the valve. When that air is supplied to the valve the valve releases air in measured bursts to the vibrator and the pressure between the valve and the vibrator is monitored. The pressure between the valve and the vibrator is compared to the known pressure, which indicates if the vibrator is failing or has failed. In preferred embodiments, the testing system includes a plurality of vibrators and an equal plurality of valves, each vibrator is connected to the pressurized air system through a single associated valve.Type: ApplicationFiled: November 15, 2007Publication date: May 21, 2009Applicant: VENTUREDYNE, LTD.Inventors: John Alderson, Steven P. Beavers, Randall J. Beekman, Joseph D. Wetzel
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Patent number: 7065625Abstract: A computer system includes a register that is configured to contain a zero value. In response to a predetermined occurrence on the computer system, such as a hardware interrupt, the computer system launches a trap routine. This routine generates output data that needs to be stored within the memory space of the computer system. In order to write out this data from within the trap routine, a desired target address is specified as a negative offset from the zero value stored in the register. This avoids the need to have to locate another (unused) register in which to store the write address.Type: GrantFiled: March 24, 2003Date of Patent: June 20, 2006Assignee: Sun Microsystems, Inc.Inventor: John Alderson
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Publication number: 20050166590Abstract: A Stirling engine assembly comprising a Stirling engine (1) with a hot head (3) and a cold region (4). An annular burner (9) surrounds the head and is arranged to provide heat to the head. A corrugated seal (2) between the Stirling engine and the burner prevents the flow of combustion gases from the head into the surrounding environment. The Stirling engine is supported by a mounting frame (23) at least in part via the seal.Type: ApplicationFiled: May 13, 2003Publication date: August 4, 2005Inventors: John Alderson, Jennifer Lamb, Jukie Hyde, Heather Allderidge, David Clark
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Publication number: 20030212874Abstract: A computer system includes a register that is configured to contain a zero value. In response to a predetermined occurrence on the computer system, such as a hardware interrupt, the computer system launches a trap routine. This routine generates output data that needs to be stored within the memory space of the computer system. In order to write out this data from within the trap routine, a desired target address is specified as a negative offset from the zero value stored in the register. This avoids the need to have to locate another (unused) register in which to store the write address.Type: ApplicationFiled: March 24, 2003Publication date: November 13, 2003Applicant: Sun Microsystems, Inc.Inventor: John Alderson
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Patent number: 5817583Abstract: Textile materials having radar attenuating properties based upon a polymer enclosed scrim having hollows which are at least partially filled with radar attenuating material. The scrim is sandwiched between two or more polymeric layers, the spaces being the interstices of the scrim. Suitable radar attenuating materials for inclusion in these spaces include carbon granules, carbon fiber, carbonyl iron, ferrites or metal coated microspheres. Carbon fiber is conveniently used in chopped or otherwise relatively short fiber form. The textiles offer lightweight with equivalent radar attenuation performance to known textiles and may include further radar attenuating material in polymeric components to provide enhanced attenuation effect.Type: GrantFiled: May 24, 1995Date of Patent: October 6, 1998Assignee: The Secretary of State for Defence in her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventors: John Alderson, Alan F. Vickers